Question

16 multiple choice 4 points
what does the term \desertification\ refer to?
the creation of artificial oases in dry environments
the process of turning deserts into fertile land
the degradation of fertile land into desert - like conditions
the expansion of urban areas into arid regions
17 multiple choice 4 points
what is the primary force driving mass movement?
water
wind
gravity
ice
18 multiple choice 4 points
what is the term for the movement of people from rural to urban areas?
migration
immigration
emigration
urbanization

Explanation:

• Question 16: Desertification is defined as the degradation of fertile land into desert - like conditions due to various factors such as over - cultivation, over - grazing, and climate change.
• Question 17: Gravity is the primary force driving mass movement. It causes materials (such as soil, rocks) to move downslope.
• Question 18: Urbanization specifically refers to the movement of people from rural to urban areas. Migration is a more general term for the movement of people from one place to another. Immigration is the act of coming to live permanently in a foreign country. Emigration is the act of leaving one's own country to settle permanently in another.

Answer:

1. The degradation of fertile land into desert - like conditions
2. Gravity
3. Urbanization